Earphones make the most sense. If I need a speaker, I have a small Radio Shack speaker with an amp, powered by a 9 V. battery. However I've not tried it with my KX3 -- and I don't know if RS still has them. 73, Phil w7ox On 3/27/14, 6:02 PM, Ross Primrose N4RP wrote: > Just use a pair of small amplified computer > speakers... > > 73, Ross N4RP >